Hi, I’m
Vivek Kumar Shrivastav
Greater Noida
Summary
Network Security Analyst with 9 years of rich experience across multiple organizations, leading cross-functional teams in the development, documentation and delivery of process innovations for driving the attainment of business goals. Committed & Strategic IS Audit Professional, involved in requirement gathering for clients & mapping them, preparing scope based on the compliance & regulatory requirement, conducting IT audits, datacenter audits, application audits, data localization audits and process audits. Rich exposure in planning & performing complex projects & process and regulatory & compliance audits with the objective of assessing compliance with operating policies & procedures, evaluating existing internal controls and ensuring the use of business practices; expertise in configuring and managing Juniper SRX Firewalls, Zscaler Internet Access, Zscaler Private Access ,Zscaler Client Connector and Zscaler Digital Experience. Expertise in governing full-scope process audits, application & security conduction to pinpoint potential security loopholes in order to ensure data integrity, confidentiality and availability; resolved issues related to internet websites and private/Internal applications, public/private servers, file downloading/uploading, authentication, ZCC app errors, GRE and IPSec Tunnel, performance degradation, App profiles and forwarding options DTLS and TLS. Proven capabilities in managing stakeholders (managers, business, vendors) by informing them on future scenarios, maintaining key relations with clients by acquiring feedback on issues, and creating change requests. Extensive experience in aligning operations with business strategy; designed & drove large and complex transformation solutions and addressed complex business requirements through innovative IT solutions.
Overview
9
years of professional experience
1
Certification
Work History
Tata Consultancy Services Ltd.Gurgaon
IT Analyst
01.2017 - Current
Job overview
- Managed projects such as Bombardier, Alstom, Pitney Bowes and Avery Dennison driven by Systems Operations and other IT & Business Groups.
- Maintained network and systems by managing product and capability roadmaps, establishing maintenance procedures, and working with systems administrators and other engineers to perform regular network maintenance.
- Troubleshot user circuit outages including the data collection for problem isolation and verified end-to-end system health after extended outages.
- Managed the design, installation, upgradation, maintenance, and troubleshooting of multiple Juniper SRX Firewalls and multiple Demilitarized Zones (DMZs) per context in a highly available/redundant configuration.
- Prepared disaster recovery plans for the network and security devices; interfaced with vendors for network and security products.
- Ensured that IT systems, applications, and communication equipment within the organization were managed and maintained in accordance with documented processes, procedures, guidelines, and instructions.
- Performed security risk assessment/analysis & recommended mitigation through appropriate controls, both in projects and for existing assets.
- Designed and implemented security controls, procedures and standards, Information Security (IS) structure, especially regarding logging of security events and the security risk mitigation controls.
- Recommended, designed and implemented appropriate security controls such as Zscaler and firewalls, designed & implemented security procedures, standards and structures for all platforms, databases and applications.
- Received Certificate of Appreciation for being the Best Performer in 2020 and Best Team Player in 2021.
Alstom
Zscaler Administrator
01.2019 - Current
Job overview
- Handling incidents, tasks and request opened by Alstom users or technical teams for issues pertaining to Proxy, IPsec Tunnel, GRE, Zscaler Internet Access and Zscaler-App.
- Providing assistance on severity cases with high business impact and delivering quick resolution.
- Resolving issues on non-working websites, servers, file downloads, slowness, blocked ports, SSL encryption, whitelisting, black listing, authentication and different errors in Z-app.
- Providing support for various traffic forwarding includes tunneling, PAC files, surrogate IP, and Zscaler client connector.
- Troubleshooting performance issues based on ZDX score and reports on ZDX portal.
- Following the change management process to implement the changes after the required approvals.
- Provisioning of IPsec and GRE tunnels between the sites and Zscaler data center.
- Applying bandwidth control policies on cloud applications as per the client requirements and utilization.
- Analyzing web insights, firewall insights, tunnel insights logs, administration controls, backup and restore and logs audit.
- Fetching various reports in ZIA and ZDX Portals; configuring authentication & SIEM integration.
- Reaching out to the Zscaler Engineering Team for bugs and enhancement requests.
Bombardier Transportation
Network Operations and Security
01.2017 - 03.2019
Job overview
- Worked in the environment of Juniper Switches and SRX firewall, Cisco switches and routers, Cisco autonomous and light weight access points and Cisco controllers, Aruba access points and controller, VPN MAG box, riverbed, console servers, radius server, load balancers, Syslog Server- Splunk and Zscaler internet access.
- Handled incidents opened for LAN and wireless-LAN, Site down, VPN, routing and switching issues, ports blocked for any application/server.
- Implemented configuration on Cisco switches and Cisco routers, Juniper multilayer- switches and SRX firewall both standalone and in Virtual-chassis.
- Installed hardware and configuring devices remotely with the co-ordination of Field Engineers at site.
- Implemented Firewall policies using CLI and juniper tool – 'Junos-space'.
- Performed: Junos OS upgrade on Juniper multilayer switches and Juniper SRX firewalls.
- Daily checks for utilization, errors, backups on a data center device as a part of device management.
- Basic operation on steelhead riverbed, pulse secure mag boxes and load balancers, radius servers.
- Analyzed web traffic going through Zscaler cloud, URL filtering and Firewall filtering; configured app profiles and PAC files, IPSEC and GRE tunnel provisioning, bandwidth control and Authentication.
- Prepared change requests and implementing the changes as per the client requirement.
- Worked on IP Address Management Tool for managing IP Address (DHCP and DNS), SolarWinds for managing network devices and Zabbix for monitoring server alerts.
- German client with 4 data centers and more than 500 sites across the world.
Education
CCS University
Bachelor of Computer Application (BCA)
Skills
- Network Security
- Cyber Security
- Zscaler Certified - ZIA, ZPA and ZDX
- Zero trust/SASE and Firewalls
- CCNA and CCNP Certified
- OSI
- TCP/IP
- SSL
- PKI
- Endpoint Protection
- CASB
- Secure browsing
- DLP
- PAC
- Proxy
- Wireshark
- MTR
- ZDX
- JIRA
- Service-now
- BMC Remedy
- IT Service Management
- Database Administration & Management
- Software Delivery Management
- Project Management
- General Purpose Programming
- Stakeholder Management
- Infra & Data Security Management
- Third Party Risk Assessment
- IT Infrastructure Analysis
- Data Privacy / Compliance
- Information Security (IS)
- Network Security & Management
- Data Leakage Protection (DLP)
Certification
- Zscaler Certified Cloud Administrator - Internet Access (ZCCA-IA)
- Zscaler Certified Cloud Administrator – Private Access (ZCCA-PA)
- Zscaler Certified Cloud Professional – Internet Access (ZCCP-IA)
- Zscaler Certified Cloud Administrator - Internet Access Security Specialist (ZCCA-IASS)
- Zscaler Cloud Certified Administrator – Zscaler Digital Experience (ZCCA-ZDX)
- Cisco Certified Network Associate (CCNA) Routing and Switching
- Cisco Certified Specialist – Enterprise Core (CCNP- ENCOR)
- Juniper Networks Certified Internet Associate (JNCIA-Junos)
- ITIL foundation V3
Languages
English
Hindi
Personal Information
- Title: Zscaler Certified Senior Network Security Engineer | Zero Trust Solution and Architect
- Date of Birth: 2nd November 1995
- Gender: Male
- Nationality: Indian
- Marital Status: Married
Timeline
Zscaler Administrator
Alstom
01.2019 - Current
IT Analyst
Tata Consultancy Services Ltd.
01.2017 - Current
Network Operations and Security
Bombardier Transportation
01.2017 - 03.2019
CCS University
Bachelor of Computer Application (BCA)